inhalable dust sampler

inhalable dust sampler technical parameters:

inhalable dust sampler is used to measure the concentration of inhalable dust, collect the inhalable dust on the filter membrane, then weigh and calculate the concentration of inhalable dust.

1.Sampling flow rate: 5-30 L/min, 5-25 L/min, 10-25L/min, 1-10 L/min (flow rate optional) Respirable dust sampling flow rate: 20L/min

2.Sampling flow error: ≤±3%FS

3.Sampling flow stability: The sampling flow stability of the sampler within 60 minutes is ≤3.0%FS

4.Load capacity: ≥200Pa

5.Continuous working time: ≥100min

6.Working noise: ≤75dB(A)

7.Flow meter accuracy: not less than level 2.5.

8.Sampling time error: ≤±0.1% within 5 minutes

9.Average flow velocity of sampling port: 0.5～4.0m/s

10.Air tightness: The sampling head and flow meter of the sampler are maintained at a pressure difference of (1000-1100) Pa for 1 minute, and the pressure change shall not exceed 100 Pa.

11.Operating environment temperature: -10~40℃ Relative humidity: ≤95%

12.Explosion-proof type: mining intrinsically safe ExibI (150℃), suitable for flammable and explosive workplaces and underground sampling in coal mines.

13.Intrinsically safe battery pack: Ni-H nickel-hydrogen battery 2.7A/h, 6 cells, connected in series with 4 0.51Ω/10W current-limiting resistors, potted with epoxy resin and placed in the battery box, rated voltage Ue :7.2V; its maximum output voltage U0: 9.0V; maximum output current I0: 4.52A.

14.Overall dimensions: 149×202×80 (mm)

15.Weight ≤1.75Kg

16.Operating environment temperature: 0~40℃ Relative humidity: ≤95%

17.Ambient atmospheric pressure: 80KPa ~ 110KPa underground coal mines containing gas or coal dust explosion hazards

18.Dust collection scope: total dust and respirable dust.